The difference between ABS and non-ABS emergency braking
At a Lexus safety features event in Alameda, California, on September 16, 2010, a professional driver explains and demonstrates the difference between how a car performs with and without anti-lock braking.
ABS vs. No ABS - Episode 4
Basically a re-make of Episode 1, with real life footage.
A lot of people claim that since past episodes are 3D representations,
therefore are fake or innacurate.
I know the difference would be much different if surface was wet, oily,
with gravel, mud, etc... My videos are based on day to day conditions.
Also I´m just trying to make a single point : "It is possible to stop on a
shorter distance without ABS"
I know it lets you steer, and all that stuff, but right now I´m not
dealing with it (maybe later). ABS is a safety feature but it always comes
to the driver to manouver correctly under dangerous circumnstances and take
the right decitions to avoid an accident. (like lowering your speed if road
is on low traction conditions, or not speeding while getting to a blind
Here´s me demonstrating what I´ve shown in previous episodes. I´m the
- In 2nd Threshold braking, I missed my braking point (a bush I used as
reference) so I had to brake a bit harder, you can see ABS is disabled
because on the last second my rear wheel locks.
- I changed locations because the tests where on different days, I have to
find a nice lone road to do them, and the tests of threshold braking I made
on the 1st location lacked a lot of references and was very hard to brake
always at the same speed, also I had less road to speed up and keep that
speed before braking.
- I lose speedometer when I disable ABS, how do I know I´m reaching the
same speed? well, I perform an ABS test and look at the tachometer to see
how much revolutions at certain gear I need for that particular speed (in
this case it was 3500 revs in 2nd gear for 55-60 kmph)
- The voice is all weird because its from a text to speech engine, it is
not me talking. I wanted to narrate stuff instead of typing everything like
on past episodes.
The car is a standard production car. Opel Astra with stock brakes, braking
pads are not new (in fact they need to be replaced)
Wheels are Michelin hydroedge, which are great to avoid hydroplaning and
they´re very hard, so they last a long way. There´s no flat stop after
the full lock test.
ABS Explained - Must Watch. ✔
More details visit: http://www.HowMachineneWorks.com/
This video explains about the working of ABS -- Anti lock braking system
and its components.
This system is a precision braking system used in modern automobiles.
Components of an ABS:
1. Wheel speed sensor.
2. ABS control module.
3. Hydraulic motor.
4. Pressure release valves.
5. Brake pipe leading to caliper.
Working of ABS:
All the wheels are fixed with brake calipers and wheel speed sensors. As
the brake is applied, the hydraulic motor supplies the flow to the brake
caliper and the brake will be engaged. In case of a wheel slip, there is a
chance for wheel lock. This will be sensed by the wheel speed sensor which
intimates this to the ABS control module. The ABS control module intern
opens the relief valve and release the pressure from the caliper there by
avoiding wheel lock. As the wheel lock is cleared, the hydraulic motor
increased the flow there by increasing the breaking effort.
There are two types of ABS systems
1. Three channel
2. Four channel system.
Which will be updated in my coming videos.
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